I've gotten up through scenario 5 with a friend, and now would like to teach it to another person (my wife). I probably only have a game or two to convince her she'll like the game.

I feel the game is really most fun when you at least go up through the interrupt rules, and even better the shooting rules. Would it break the earlier scenarios to use more rules than are recommended? Has this ever been playtested? I realize there is an issue with equipment and such, but one could allow a point buy for initial equipment.